FreeCalypso > hg > themwi-system-sw

annotate sip-in/disconnect.c @ 65:7c0309df59f8

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sip-in: handling of ALERTING state
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 18 Sep 2022 15:44:22 -0800
parents 1f863c63f96b
children 5beb51de1bae
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1f863c63f96b sip-in: beginning of disconnect handling
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * In this module we implement call disconnection and clearing procedures.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/socket.h>
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7 #include <netinet/in.h>
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8 #include <stdio.h>
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9 #include <stdint.h>
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10 #include <stdlib.h>
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11 #include <string.h>
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12 #include <strings.h>
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13 #include <syslog.h>
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14 #include "../include/mncc.h"
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15 #include "../include/gsm48_const.h"
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16 #include "call.h"
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17
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18 void
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19 disconnect_mncc(call, cause_loc, cause_val)
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20 struct call *call;
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21 {
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22 struct gsm_mncc msg;
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23
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24 switch (call->mncc_state) {
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25 case MNCC_STATE_NO_EXIST:
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26 case MNCC_STATE_DISCONNECT:
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27 case MNCC_STATE_RELEASE:
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28 return;
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29 }
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30 bzero(&msg, sizeof(struct gsm_mncc));
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31 msg.msg_type = MNCC_DISC_REQ;
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32 msg.callref = call->mncc_callref;
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33 mncc_set_cause(&msg, cause_loc, cause_val);
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34 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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35 call->mncc_state = MNCC_STATE_DISCONNECT;
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36 }
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37
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38 void
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39 disconnect_tmgw(call)
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40 struct call *call;
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41 {
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42 switch (call->mgw_state) {
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43 case MGW_STATE_NO_EXIST:
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44 case MGW_STATE_CONNECTING:
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45 case MGW_STATE_DELETING:
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46 return;
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47 case MGW_STATE_ALLOCATED:
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48 case MGW_STATE_COMPLETE:
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49 tmgw_send_dlcx(call);
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50 return;
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51 default:
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52 syslog(LOG_CRIT,
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53 "FATAL: invalid MGW state 0x%x in disconnect_tmgw()",
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54 call->mgw_state);
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55 exit(1);
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56 }
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57 }